README

In ProxySQL 2.0.4 , libssl was upgrade from 1.1.0h to 1.1.1b .

In ProxySQL 2.0.7 , libssl was downgraded back to 1.1.0h . See bug 2244 .

In ProxySQL 2.1.1 , libssl was upgraded to version 1.1.1j

In ProxySQL 2.4.0 , libssl was upgraded from version 1.1.1j to 3.0.2

In ProxySQL 2.4.8 , libssl was upgraded from version 3.0.2 to 3.0.8

In ProxySQL 2.5.x , libssl was upgraded from version 3.0.8 to 3.1.0

Do not upgrade without extensive testing.

See note about struct bio_st in MySQL_Data_Stream.cpp .

Run verify-bio_st-match.sh to confirm compatibility.

In ProxySQL 3.0.1, OpenSSL was changed from being statically linked to dynamically linked.